Another OCD issue

Hey guys! So I struggle with OCD, especially harm, relationship and moral stuff and I am somewhat recovered now. However, my current girlfriend has started showing signs of OCD but it’s abou5 something I don’t know much about so I wanted to see if anyone on here had thoughts about it. She is constantly thinking about food (when to eat it, what is healthy, what is too much, what is too little) and controls the thoughts by giving in and controlling her entire day around food. She don’t really know the feeling of being full. She never starved herself and always eats, but then she feels extremely guilty afterwards. Her thoughts do have to do a lot with her body image and not gaining weight but also not losing any either. Does this sound like ocd or an eating disorder?

I'm having awful stomach pain and nausea and it's really worrying me and scaring me

Sometimes I had some relationship OCD and then I didn’t qualify for contamination OCD however I know in relationships partners like to be close and drink out of each others cup. My partner was thirsty and getting very hot and he asked for my drink and I gave it to him he felt better and I am so beyound happy he did! I feel a lot of shame admitting this, he told me I could have my drink back and I said thank you! 😊 He noticed I didn’t drink it because in my mind it says it is contaminated and I felt extremely bad that he noticed so I got a piece of gum to distracte us I then had to spit out the gum because it wasn’t a good flavor then my brain told me well… ( Ms.OCD) said if I don’t drink it it will hurt his feelings and then that means I don’t like him and then I drink it then I spiraled from there lol 😂 I am so sorry it wasn’t a weird funny story I was wondering if anyone else can relate? I was wondering if there is any advice I can please have? Thank you so much!! Please write down something in the comments if you are struggling because I want to help you all as well!! Thank you!!